| 生物土壤与生态 |
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| Leaf Functional Traits of Ceratoides Latens in Northern Slope of Kunlun Mountain and its Regional Difference with the Altitude |
| ZHU Jun-tao1,2,3, LI Xiang-yi1,3, ZHANG Xi-ming1,3, ZENG Fan-jiang1,3, YANG Shang-gong1,2,3 |
| 1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3.Cele National Station of Observation & Research for Desert-grass Land Ecosystem, Cele 848300, Xinjiang, China |
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Abstract In order to investigate the leaf functional traits of Ceratoides latens in northern slope of Kunlun Mountain and its regional difference with the altitude, we measured the photosynthesis, specific leaf area and the content of leaf nitrogen, phosphorus in leaves of Ceratoides latens from different altitudes in Kunlun Mountain. The results were as follows. PAR and soil water content increased with increasing altitude, and temperature reduced with increasing altitude. The daily course of Pn of Ceratoides latens presented as the single-peaked pattern, and there was no obvious "midday depression" phenomenon. The content of nitrogen, phosphorus in leaves and specific leaf area increased with increasing altitude. The relationships between Aarea and leaf N, P, SLA were very significant, and stepwise regression showed that the relationship order was Nmass>SLA>Pmass.
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Received: 25 October 2009
Published: 20 November 2010
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2010, Vol. 30 
